The benefit to FoCal is that it performs a great many measurements and does a statistical analysis to determine which setting has the best likelihood of being in focus. Any manual method...well, it'll get you in the ballpark, sure, but, unless you perform the same type of repeated testing and subsequent statistical analysis, you're never going to get the same quality of results.

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I have used both. Go with Reikan FoCal, get the Pro version. FoCal is much easier, quicker and I believer more accurate.

First I used the LensAlign mkII version. The construction is flimsy, very difficult to disassemble without breaking, and the plastic ruler can sag effecting your readings. I sold it for a few bucks on ebay.